CN101308719A - Inductive element - Google Patents
Inductive element Download PDFInfo
- Publication number
- CN101308719A CN101308719A CNA200710102574XA CN200710102574A CN101308719A CN 101308719 A CN101308719 A CN 101308719A CN A200710102574X A CNA200710102574X A CN A200710102574XA CN 200710102574 A CN200710102574 A CN 200710102574A CN 101308719 A CN101308719 A CN 101308719A
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- China
- Prior art keywords
- magnetic
- inductance element
- magnetic material
- resin
- insulation
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Abstract
The invention discloses an inductive element which comprises a winding and a magnetic piece. The magnetic piece wraps the winding and comprises at least one type of insulated magnetic material and at least one type of resin.
Description
Technical field
The present invention relates to a kind of inductance element, particularly relate to a kind of inner embedded type inductive element.
Background technology
Along with the trend of electronic product microminiaturization, basic and important spare part for example inductance element is required to reduce weight and the volume purpose with the equivalence element microminiaturization too.Yet, how when reducing volume, still to have the characteristic that consume is low and efficient is high, desire most ardently the target of pursuit more now.
For the inductance element of anti-big electric current, high frequency and low magnetic loss is provided, and reach the purpose of no air gap and high operating efficiency, the product of internal embedded type inductive is complied with and is given birth to.Existing internal embedded type inductive comprises coil and magnetic.Coil is to be formed by the lead winding, and coil has first end and second end, is connected with a plurality of pins respectively.After magnetic was hybrid metal Magnaglo and resin, die cast formed the magnetic that coats coil.
Magnetic except with Magnaglo as the main component, in order to reduce magnetic loss (core loss) phenomenon that eddy current consume (eddycurrent loss) is caused, can add as silica (SiO usually
2), zinc oxide (ZnO), titanium oxide (TiO
2), aluminium oxide (Al
2O
3), iron oxide (Fe
2O
3), boron nitride (BN) or barium sulphide (BaSO
4) etc. the insulating properties powder.Yet,, therefore can make the magnetic of magnetic diluted because these insulating properties powder do not have magnetic.In addition, also Magnaglo can be increased insulating properties through high-temperature process to form oxide-film in its surface.Yet, owing to increased many non-magnetic insulating properties materials in the whole magnetic, and the Magnaglo of aforementioned techniques gained is because of containing silicon (Si), aluminium (Al), chromium (Cr), titanium (Ti), zirconium (Zr), niobium (Nb) or tantalum easy oxidation elements such as (Ta), and the saturation flux density (saturation magnetic flux density) of internal embedded type inductive can be declined to a great extent, above-mentioned two kinds of situations all can significantly have influence on the usefulness of internal embedded type inductive.
In view of this, how to address the above problem, so that a kind of dynamical " inductance element " to be provided, real is one of important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention is for providing a kind of inductance element that has high-insulativity and do not influence magnetic.
For reaching above-mentioned purpose, the present invention proposes a kind of inductance element, and it comprises a coil and a magnetic.Magnetic system coats coil, and magnetic system is formed by at least one insulation magnetic material and at least one mixed with resin.
The present invention proposes a kind of inductance element in addition, and it comprises a coil and a magnetic.Magnetic coats coil, and magnetic comprises at least one magnetic material, at least one insulation magnetic material and at least one resin, and wherein this insulation magnetic material coats this magnetic material.
From the above, inductance element of the present invention be the insulation magnetic material, aforementioned dielectric magnetic material that have high-insulativity and magnetic concurrently by direct use with magnetic material mix or the aforementioned dielectric magnetic material coat aforementioned magnetic material and material so that insulated from each other between the magnetic material in the magnetic.Compared with prior art, because insulation magnetic material of the present invention has high-insulativity and magnetic concurrently, therefore, do not lose the whole magnetic that influences magnetic again reaching under the insulation purpose, and have preferable magnetic characteristic for example permeability and saturation flux density, and then reach high inductance usefulness.
Description of drawings
Fig. 1 is the schematic diagram according to a kind of inductance element of preferred embodiment of the present invention.
The component symbol explanation:
1 inductance element, 11 coils
The 11a first end 11b second end
12 magnetic 13a, 13b pin
Embodiment
Hereinafter with reference to correlative type, a kind of inductance element according to preferred embodiment of the present invention is described, wherein components identical will be illustrated with identical reference marks.
Please refer to shown in Figure 1ly, it shows the schematic diagram according to the inductance element 1 of preferred embodiment of the present invention.Inductance element 1 comprises a coil 11 and a magnetic 12.In the present embodiment, inductance element 1 is to be example explanation with an internal embedded type inductive, but not as limit.
Magnetic 12 is in order to coat coil 11, and coil 11 can be that round conductor, square lead or the winding of flat lead institute form according to actual needs.Coil 11 has one first end 11a and one second end 11b, and it can also can be connected and connect as inductance element 1 with this pin 13a, 13b the pin of outer member respectively directly as the pin of inductance element 1 connection outer member with pin 13a, 13b.
Magnetic 12 is to be formed by at least one insulation magnetic material and at least one mixed with resin.Specifically, this insulation magnetic material and this resin system can fully be mixed, and add a spot of coupling agent, mixing make be the melting state after, inject a mould and form.In this, coil 11 can be placed in the mould in advance.
In the present embodiment, this insulation magnetic material can be manganese oxide di-iron trioxide (MnOFe
2O
3), nickel oxide di-iron trioxide (NiOFe
2O
3), zinc oxide di-iron trioxide (ZnOFe
2O
3) or other ferrites (ferrite) magnetic material.This insulation magnetic material can be powder or particle form.Because this insulation magnetic material itself has high-insulativity and magnetic concurrently, so this inductance element 1 can still have good magnetic characteristics under the situation of the high integral insulation of tool.Aforementioned magnetic characteristic can be permeability and/or full magnetic flow density.
In the present embodiment, this resin comprises inorganic resin, and this inorganic resin can be that aluminum silicate or other are the resin of matrix with silicon-aluminium-oxygen.The percentage that this resin accounts for magnetic 12 is about 10%-40%, is about 150 ℃-300 ℃ and make the curing temperature scope of magnetic 12.Because the resin of present embodiment has the thermal endurance more than 400 ℃, thereby can avoid inductance element 1 under long-time running, the heat ageing phenomenon to take place, and can significantly promote the useful life of inductance element 1.
In addition, also can comprise as epoxy resin organic resins such as (epoxy) in the present embodiment resin.At this moment, can significantly reduce the cost of present embodiment resin, significantly to improve the product competition of inductance element 1.
In addition, magnetic 12 of the present invention can further include at least one magnetic material, this magnetic material based alloy that can be iron, silicon, cobalt, nickel, aluminium, molybdenum or previous materials.This magnetic material can be powder or particle form.This magnetic 12 can be to mix aforementioned dielectric magnetic material and this magnetic material earlier to reshape, and also can be to coat aforementioned magnetic material with the aforementioned dielectric magnetic material earlier to reshape.In addition, in this magnetic 12, this insulation magnetic material accounts for the percent by volume of 1%-10%.
This insulation magnetic material coated magnetic material for example is that this insulation magnetic material directly is coated with (coating) surface in this magnetic material, and wherein Tu Bu method can be sol/gel method (sol-gel), hydro thermal method (hydrothermal), coprecipitation (coprecipitation) or other rubbing methods etc.Under aforementioned circumstances, each magnetic material is evenly coated by this insulation magnetic material, and makes magnetic have high-insulativity and magnetic characteristic concurrently.
In sum, inductance element of the present invention utilizes at least a insulation with high-insulativity and magnetic Magnetic material to mix with magnetic material or the mode of coated magnetic material, makes the magnetic material in the magnetic Insulated from each other between material. Compared with prior art, because insulation magnetic material of the present invention has magnetic, Therefore reaching under the insulation purpose, do not lose again the whole magnetic that affects magnetic, and have better magnetic Characteristic is permeability and saturation flux density for example, and then reaches high inductance usefulness.
The above only is illustrative, but not is restricted person. Any spirit of the present invention and model of not breaking away from The farmland, and to its equivalent modifications of carrying out or change, all should be contained in the appended claim.
Claims (14)
1, a kind of inductance element comprises:
One coil; And
One magnetic, it coats this coil, and this magnetic comprises at least one insulation magnetic material and at least one resin.
2, inductance element as claimed in claim 1, wherein this magnetic more comprises at least one magnetic material.
3, inductance element as claimed in claim 2, wherein this magnetic material chosen from Fe, silicon, cobalt, nickel, aluminium, molybdenum and group that combination constituted thereof.
4, inductance element as claimed in claim 2, wherein this magnetic mixes this insulation magnetic material and this magnetic material and is shaped or coats this magnetic material and be shaped with this insulation magnetic material.
5, inductance element as claimed in claim 4, wherein the method for this coating is sol/gel method, hydro thermal method, coprecipitation or rubbing method.
6, inductance element as claimed in claim 1, wherein this insulation magnetic material is manganese oxide di-iron trioxide (MnOFe
2O
3), nickel oxide di-iron trioxide (NiOFe
2O
3), zinc oxide di-iron trioxide (ZnOFe
2O
3) or other ferrite magnetic materials.
7, inductance element as claimed in claim 1, wherein to account for the percentage of this magnetic be 1%-10% to this insulation magnetic material, and the percentage that this resin accounts for this magnetic is 10%-40%.
8, inductance element as claimed in claim 1, wherein this resin is aluminum silicate, is resin, epoxy resin, inorganic resin or the organic resin of matrix with silicon-aluminium-oxygen.
9, inductance element as claimed in claim 1, wherein the thermal endurance of this resin is higher than 400 ℃.
10, inductance element as claimed in claim 1, wherein this coil is to be formed by round conductor, square lead, flat lead or the winding of electric wire institute.
11, inductance element as claimed in claim 1, wherein two ends of this coil are directly as the pin of this inductance element or be connected with a pin respectively.
12, inductance element as claimed in claim 1, wherein this magnetic fully mixes this insulation magnetic material and this resin, and adds a spot of coupling agent, mixing make be the melting state after, inject a mould and form.
13, inductance element as claimed in claim 12, wherein this coil is placed in this mould in advance.
14, inductance element as claimed in claim 1, wherein the curing temperature scope of this magnetic is about 150 ℃-300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710102574XA CN101308719A (en) | 2007-05-16 | 2007-05-16 | Inductive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710102574XA CN101308719A (en) | 2007-05-16 | 2007-05-16 | Inductive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101308719A true CN101308719A (en) | 2008-11-19 |
Family
ID=40125101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710102574XA Pending CN101308719A (en) | 2007-05-16 | 2007-05-16 | Inductive element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101308719A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610362A (en) * | 2011-01-20 | 2012-07-25 | 太阳诱电株式会社 | Coil component |
| CN102890997A (en) * | 2011-07-22 | 2013-01-23 | 三积瑞科技（苏州）有限公司 | Iron-silicon-chromium-manganese-titanium inductor component |
| US8704629B2 (en) | 2010-04-30 | 2014-04-22 | Taiyo Yuden Co., Ltd. | Coil-type electronic component and its manufacturing method |
| US8723634B2 (en) | 2010-04-30 | 2014-05-13 | Taiyo Yuden Co., Ltd. | Coil-type electronic component and its manufacturing method |
| US8866579B2 (en) | 2011-11-17 | 2014-10-21 | Taiyo Yuden Co., Ltd. | Laminated inductor |
| US8896405B2 (en) | 2011-10-28 | 2014-11-25 | Taiyo Yuden Co., Ltd. | Coil-type electronic component |
| US9007159B2 (en) | 2011-12-15 | 2015-04-14 | Taiyo Yuden Co., Ltd. | Coil-type electronic component |
| US9030285B2 (en) | 2011-04-27 | 2015-05-12 | Taiyo Yuden Co., Ltd. | Magnetic material and coil component using same |
| US9165705B2 (en) | 2011-08-05 | 2015-10-20 | Taiyo Yuden Co., Ltd. | Laminated inductor |
| US9287026B2 (en) | 2011-04-27 | 2016-03-15 | Taiyo Yuden Co., Ltd. | Magnetic material and coil component |
| US9318251B2 (en) | 2006-08-09 | 2016-04-19 | Coilcraft, Incorporated | Method of manufacturing an electronic component |
| CN111354535A (en) * | 2020-04-22 | 2020-06-30 | 昆山玛冀电子有限公司 | Inductor, electronic device and preparation method thereof |
-
2007
- 2007-05-16 CN CNA200710102574XA patent/CN101308719A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9318251B2 (en) | 2006-08-09 | 2016-04-19 | Coilcraft, Incorporated | Method of manufacturing an electronic component |
| US11869696B2 (en) | 2006-08-09 | 2024-01-09 | Coilcraft, Incorporated | Electronic component |
| US10319507B2 (en) | 2006-08-09 | 2019-06-11 | Coilcraft, Incorporated | Method of manufacturing an electronic component |
| US8704629B2 (en) | 2010-04-30 | 2014-04-22 | Taiyo Yuden Co., Ltd. | Coil-type electronic component and its manufacturing method |
| US8723634B2 (en) | 2010-04-30 | 2014-05-13 | Taiyo Yuden Co., Ltd. | Coil-type electronic component and its manufacturing method |
| US8749339B2 (en) | 2010-04-30 | 2014-06-10 | Taiyo Yuden Co., Ltd. | Coil-type electronic component and process for producing same |
| US8813346B2 (en) | 2010-04-30 | 2014-08-26 | Taiyo Yuden Co., Ltd. | Method for manufacturing a coil-type electronic component |
| CN102610362B (en) * | 2011-01-20 | 2015-09-16 | 太阳诱电株式会社 | Coil component |
| CN102610362A (en) * | 2011-01-20 | 2012-07-25 | 太阳诱电株式会社 | Coil component |
| US9685267B2 (en) | 2011-01-20 | 2017-06-20 | Taiyo Yuden Co., Ltd. | Coil component |
| US9349517B2 (en) | 2011-01-20 | 2016-05-24 | Taiyo Yuden Co., Ltd. | Coil component |
| US9472341B2 (en) | 2011-04-27 | 2016-10-18 | Taiyo Yuden Co., Ltd. | Method for manufacturing magnetic grain compact |
| US9030285B2 (en) | 2011-04-27 | 2015-05-12 | Taiyo Yuden Co., Ltd. | Magnetic material and coil component using same |
| US9287026B2 (en) | 2011-04-27 | 2016-03-15 | Taiyo Yuden Co., Ltd. | Magnetic material and coil component |
| US9287033B2 (en) | 2011-04-27 | 2016-03-15 | Taiyo Yuden Co., Ltd. | Magnetic material and coil component using same |
| CN102890997A (en) * | 2011-07-22 | 2013-01-23 | 三积瑞科技（苏州）有限公司 | Iron-silicon-chromium-manganese-titanium inductor component |
| US9165705B2 (en) | 2011-08-05 | 2015-10-20 | Taiyo Yuden Co., Ltd. | Laminated inductor |
| US8896405B2 (en) | 2011-10-28 | 2014-11-25 | Taiyo Yuden Co., Ltd. | Coil-type electronic component |
| US8866579B2 (en) | 2011-11-17 | 2014-10-21 | Taiyo Yuden Co., Ltd. | Laminated inductor |
| US9007159B2 (en) | 2011-12-15 | 2015-04-14 | Taiyo Yuden Co., Ltd. | Coil-type electronic component |
| CN111354535A (en) * | 2020-04-22 | 2020-06-30 | 昆山玛冀电子有限公司 | Inductor, electronic device and preparation method thereof |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081119 |